WO2012024970A1 - Procédé de traitement de trafic et équipement pour une unité de commande multipoint - Google Patents

Procédé de traitement de trafic et équipement pour une unité de commande multipoint Download PDF

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Publication number
WO2012024970A1
WO2012024970A1 PCT/CN2011/076059 CN2011076059W WO2012024970A1 WO 2012024970 A1 WO2012024970 A1 WO 2012024970A1 CN 2011076059 W CN2011076059 W CN 2011076059W WO 2012024970 A1 WO2012024970 A1 WO 2012024970A1
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WO
WIPO (PCT)
Prior art keywords
node
mcu
network
video conference
traffic processing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2011/076059
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English (en)
Chinese (zh)
Inventor
付贤会
李霞
符纪伟
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ZTE Corp
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ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Publication of WO2012024970A1 publication Critical patent/WO2012024970A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H04N7/152—Multipoint control units therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H04L12/1822—Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/02—Details
    • H04L12/16—Arrangements for providing special services to substations
    • H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
    • H04L12/1813—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast for computer conferences, e.g. chat rooms
    • H04L12/1827—Network arrangements for conference optimisation or adaptation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities
    • H04M3/567—Multimedia conference systems

Definitions

  • FIG. 1 is a schematic diagram of communication of a video conferencing system of the prior art. As shown in FIG. 1, the video conferencing system is composed of a terminal 1 and a terminal 2 connected to an MCU.
  • FIG. 1 is a schematic diagram of communication of a video conferencing system of the prior art. As shown in FIG. 1, the video conferencing system is composed of a terminal 1 and a terminal 2 connected to an MCU.
  • the MCU mainly includes: a plurality of modular VPUs (Video Processing Units), a plurality of modular APUs (Audio Processing Units), and an NPU (Net Process Unit). , Network Processing Unit) and an MP (Media Process, Media Resource Management Unit;).
  • VPUs and the APUs of different processing capabilities are respectively connected to different networks, and the APUs and VPUs with low processing capabilities are connected to the FE network, and the VPUs with high processing capabilities are connected to the GE network.
  • a primary object of the present invention is to provide a traffic processing method and apparatus for an MCU to solve network packet loss caused by network fluctuations in an existing multi-point control unit MCU, thereby affecting performance problems of the MCU system.
  • a traffic processing method for an MCU includes: determining, according to a mode of a video conference and a network capability information of a pre-stored MCU internal network node, a node participating in the video conference; Ability to allocate video conferencing traffic to nodes. Before determining the node participating in the video conference according to the mode of the video conference and the network capability information of the pre-stored MCU internal network node, the method further includes: acquiring and saving network capability information of the internal network node of the MCU.
  • Allocating video conference traffic to the node according to the network capability of the node includes: receiving the data packet of the video conference and storing the data packet in the buffer pair column of the node; sending the data packet to the node according to the network capability of the node.
  • Sending the data packet to the node according to the network capability of the node includes: calculating, according to the network capability of the node, the amount of data that the node can process in a unit time; sending the node to the node within a predetermined time period A packet of data that can be processed.
  • the network capability information of the internal network node of the MCU includes: bandwidth and IP address information of the internal network node of the MCU.
  • a traffic processing apparatus for an MCU comprising: a resource management unit configured to determine a node according to a mode of a video conference and network capability information of a pre-stored MCU internal network node Traffic processing participating in the video conference; the traffic processing unit is configured to allocate video conference traffic to the node according to the network capability of the node.
  • the resource management unit is also configured to acquire and save network capability information of the internal network node of the MCU.
  • the traffic processing unit comprises: a data receiving module, configured to receive the data packet of the video conference and store the data packet in a buffer pair column of the node; and the data sending module is configured to send the data packet to the node according to the network capability of the node.
  • the data sending module includes: a calculating submodule, configured to calculate, according to the network capability of the node, the amount of data that the node can process in a unit time; the timing submodule, configured to set the buffer queue of the slave node to send the data packet to the node.
  • the time segment; the sending submodule is configured to send, to the node, a data packet that does not exceed the amount of data that can be processed in the unit time period within the time period set by the timing submodule.
  • the network capability information of the MCU internal network node includes: bandwidth and IP address information of the internal network node of the MCU.
  • the traffic of the node is allocated according to the network capability of the node participating in the video conference traffic processing, so that when the network fluctuates, the traffic of the node can remain unchanged, and the MCU internal network generates a smooth network effect, thereby The packet loss rate of the node is reduced, which solves the problem that the internal node of the MCU network is seriously lost due to network fluctuations, thereby achieving the effect of improving the performance of the MCU system.
  • FIG. 1 is a schematic diagram showing communication of a video conference system in the prior art
  • FIG. 2 is a schematic diagram showing a connection of an internal unit of a MCU in the prior art
  • FIG. 3 is a diagram showing a method for processing video conference traffic according to an embodiment of the present invention
  • FIG. 4 is a block diagram showing the structure of a video conference traffic processing apparatus according to an embodiment of the present invention
  • FIG. 5 is a block diagram showing the structure of a video conference traffic processing apparatus according to a preferred embodiment
  • FIG. 6 is a diagram showing a first embodiment of the present invention. Schematic diagram of the MCU connection. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 3 is a flowchart of a video conference traffic processing method according to an embodiment of the present invention. As shown in FIG. 3, the following steps are included: Step S302: Determine a node participating in the video conference according to the mode of the video conference and the network capability information of the pre-stored MCU internal network node.
  • Step S304 the video conference traffic is allocated to the node according to the network capability of the node.
  • the method further includes the step of acquiring and saving network capability information of the internal network node of the MCU.
  • the above step S304 includes receiving a data packet of the video conference and storing the data packet in a buffer pair column of the node; and transmitting the data packet to the node according to the network capability of the node.
  • the data packet of the received video conference includes a data packet received from the network and required to be sent to an internal network node of the MCU, and a data packet sent by the internal network node of the MCU to the external network.
  • the step of sending the data packet to the node according to the network capability of the node includes: calculating, according to the network capability of the node, the amount of data that the node can process in a unit time; sending the node to the node within a predetermined time period
  • the data packet of the amount of data that can be processed per unit time for example, when the network capacity of the node is 100M, the number of data packets transmitted to the node within 10 ms does not exceed 80.
  • the network capability information of the internal network node of the MCU includes the bandwidth and IP address information of the internal network node of the MCU, and the acquired information may be stored in the form of a table to facilitate querying the network capability of the node.
  • the video conference traffic processing apparatus includes: a resource management unit 10 and a traffic processing unit 20, where the resource management unit 10 is connected to the traffic processing unit 20, wherein the resource management unit 10 is configured to be in a mode of video conferencing and
  • the network capability information of the pre-stored MCU internal network node determines the traffic processing of the node participating in the video conference; the traffic processing unit 20 is configured to allocate video conference traffic to the node according to the network capability of the node.
  • the resource management unit 10 pre-acquires and saves the network capability information of the internal network node of the MCU, where the network capability information includes the IP address of the node and the bandwidth information of the node, and the acquired information may be stored in the form of a table.
  • FIG. 5 is a block diagram showing the structure of a video conference traffic processing apparatus according to a preferred embodiment.
  • the traffic processing unit 20 of the traffic processing apparatus includes a data receiving module 21 and a data transmitting module 22, a data receiving module 21, and data.
  • the sending module 22 is connected.
  • the data receiving module 21 is configured to receive a data packet of the video conference and store the data packet in a data receiving module in a buffer pair column of the node; the data sending module 22 is configured to send the data packet to the node according to the network capability of the node.
  • the data packets sent by the external network to the internal network node of the MCU are stored in the buffer queue of the node, and the data packets sent by the internal network node of the MCU to the external network are stored in the buffer queue of the external network.
  • the data transmitting module 22 of the traffic processing device includes a computing sub-module 221, a timing sub-module 222, and a transmitting sub-module 223.
  • the calculation sub-module 221, the timing sub-module 222, and the transmission sub-module 223 are sequentially connected.
  • the calculation sub-module 221 is configured to calculate the amount of data that the node can process in a unit time according to the network capability of the node;
  • the timing sub-module 222 is configured to set a time period for sending the data packet from the buffer queue of the node to the node,
  • the timing sub-module may be a normal timer;
  • the sending sub-module 223 is configured to send, to the node, a data packet that does not exceed the amount of data that can be processed in the unit unit time within the time period set by the timing sub-module, the time period
  • the settings can be set by setting the MCU internal network timer and external network timer.
  • Embodiment 1 provides an MCU for traffic processing of a video conference, and an internal processing unit connection relationship of the MCU is as shown in FIG. 6.
  • the MCU of the present embodiment is further described in detail below with reference to FIG. 6.
  • the system module part of the MCU includes: a set of video processing units VPU1-VPU8 with different network capabilities, a set of audio processing units APU1, APU2, media processing resource management Unit MP, and network processing unit NPU.
  • APU1, APU2, VPU1-VPU4 are connected to 100M Ethernet, and then connected to VPU5-VPU8, MP, NPU to access Gigabit Ethernet switch chip to form a star topology network.
  • the MP is used to detect and manage internal network networking relationships and node capability information in the MCU system, and send the information to the NPU.
  • the NPU establishes an internal network networking relationship table of the MCU, and establishes a sending buffer queue by using the node as the most basic unit target.
  • the NPU receives the external data of the MCU, and distributes the bandwidth quantitatively into the intranet APU and the VPU according to the MCU internal network capability relationship table configured by the MP. Different functional conferences require different VPU processing capabilities and numbers.
  • the resources are allocated by the MP and the NPU data flow is reported.
  • the mode of the video conference is 20 terminals participating in the conference, and the multi-picture function is required, that is, each terminal needs 16 pictures, and VPU1, VPU4, and APU1 in FIG. 6 participate in data processing.
  • the processing steps of the MCU internal network traffic control algorithm are as follows: Step 1.
  • the MP detects the MCU system resources, including the IP address and network capability information of the VPU and the APU.
  • Step 2 The IP address and network capability information of the VPU and the APU of the MP4 are sent to the NPU.
  • Step 3 The NPU internally establishes a topology diagram of the internal network capability of the MCU.
  • APU1 IP: 128.0.7.1, network capability 100M
  • VPU1 IP: 128.0.7.3, network capability 100M
  • VPU4 IP: 128.0.7.6, network capability 1000M.
  • the MP acquires the conference mode, and calculates the number of VPUs and APUs that allocate sufficient resources to participate in the conference processing (such as using APU1, VPU1, and VPU4).
  • Step 5 The MP sends the conference data channel flow information to be established to the NPU. 1
  • Step 6 The NPU creates a channel according to the channel information, and prepares to receive the data stream sent by the MCU external network to the NPU.
  • Step 7. The NPU establishes buffer queues Q1, Q2, and Q3 for the participating APU1, VPU1, and VPU4, respectively, and the NPU establishes a buffer queue Q4 for the MCU external network.
  • Step 10 Accept the MCU internal network data packet, and send the data packet to the external buffer queue Q4.
  • Step 4 gathers 11, returns to step 4 and gathers 9.
  • Step 12 When the MCU external network timer T2 arrives, the external network buffer queue Q4 is processed, and according to the IP or network segment query table 1, the capability is 1000M, and the number of the transmitted packets is not more than 850 packet data from the Q4. , exit and reset the timer. Step 13. When the MCU intranet timer T1 arrives, the polling queues Ql, Q2, and Q3 are polled.
  • Q1's APU1 capability is 100M, this time from Q1, 4 dances no more than 80 data packets;
  • Q2's VPU1 capability is 100M, this time from Q2, no more than 80 data packets are introduced;
  • Q3's VPU2 capability is 1000M, and this time, 4 out of Q3, no more than 850 packets.
  • the impact of the MCU external network peak on the APU and VPU instantaneous processing media data capability requirements is eliminated, so that the APU and the VPU receive smooth network data at any time. . Therefore, the risk of packet loss from the NPU to the APU and the VPU is eliminated.
  • the traffic of the node is allocated according to the network capability of the node participating in the video conference traffic processing, so that when the network fluctuates, the traffic of the node can remain unchanged, and the MCU internal network generates a smooth
  • the network effect thus reducing the packet loss rate of the node, solves the problem that the internal node of the MCU network is seriously lost due to network fluctuations in the prior art, thereby achieving the effect of improving the performance of the MCU system.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be executed by a computing device Implemented so that they can be stored in a storage device by a computing device, and in some cases, the steps shown or described can be performed in an order different from that herein, or separately
  • the integrated circuit modules are implemented by making a plurality of modules or steps of them into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un procédé de traitement de trafic pour une Unité de Commande Multipoint (MCU). Le procédé comprend : selon le mode de vidéoconférence et les informations de capacité de réseau préconfigurées des nœuds de réseau interne de la MCU, la détermination des nœuds qui participent à la vidéoconférence ; la distribution d'un trafic de vidéoconférence aux nœuds, conformément à leur capacité de réseau. L'invention porte également sur un équipement de traitement de trafic pour une MCU. L'équipement de traitement de trafic comprend une unité de gestion de ressources et une unité de traitement de trafic. Dans l'invention, le trafic des nœuds est distribué conformément à la capacité de réseau des nœuds participant au traitement de trafic de vidéoconférence, par l'intermédiaire desquels le trafic des nœuds peut rester stable lorsque une fluctuation de réseau se produit ; par conséquent, le réseau interne de la MCU génère un effet de réseau lisse, et ainsi, le rapport de perte de paquet des nœuds est réduit et les performances de système MCU sont améliorées.
PCT/CN2011/076059 2010-08-25 2011-06-21 Procédé de traitement de trafic et équipement pour une unité de commande multipoint Ceased WO2012024970A1 (fr)

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CN201010267572.8A CN101931782B (zh) 2010-08-25 2010-08-25 用于多点控制单元的流量处理方法和装置
CN201010267572.8 2010-08-25

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CN101931782B (zh) * 2010-08-25 2015-08-12 中兴通讯股份有限公司 用于多点控制单元的流量处理方法和装置
CN106411774A (zh) * 2016-09-06 2017-02-15 联动优势科技有限公司 一种控制交易数据量的方法和装置
CN109218650A (zh) * 2017-06-30 2019-01-15 中兴通讯股份有限公司 一种获取ip地址的方法及mcu服务器设备
CN112188144B (zh) * 2020-09-14 2023-03-24 浙江华创视讯科技有限公司 音频的发送方法及装置、存储介质和电子装置

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